Sum of n Terms
Trending Questions
Q. If the sum of the series 54, 51, 48, 45.......Tn is 513, then the number of terms are
- 17
- 18
- 20
- None of these
Q. The value of n∑r=1log(arbr−1) is
Q. If S1, S2, S3, ..........Sm are the sums of n terms of m A.P.'s whose first terms are 1, 2, 3, ........ ..... m and common differences are 1, 3, 5, .......... .2m - 1 respectively, then S1+S2+S3+........Sm=
- None of the above
Q.
Find the sum of the first 15 terms of the series 3 + 5 + 7 + 9 +. . . . . . n terms.
Q.
Harikiran purchased a house in Rs. 15000 and paid Rs. 5000 at once. Rest money he promised to pay in annual instalment of Rs. 1000 with 10% per annum interest. How much money is to be paid by him
Rs. 21555
Rs. 20475
Rs. 20500
Rs. 20700
Q.
Find the sum of the first n natural numbers.
Q.
The sum of (n+1) terms of 11+11+2+11+2+3+.......... is
Q.
If sum of n terms of an A.P. is 3n2+5n and Tm=164, then the value of m is
26
28
25
27
Q.
5+9+13+.......upto n. termsIf 7+9+11+..... upto (n+1) terms=1716 then n is equal to
- 6
- none of these
- 7
- 9
Q. If the sum of the first 2n terms of the A.P. 2, 5, 8, ...., is equal to the sum of the first n terms of the A.P. 57, 59, 61, ...., then n equals
- 10
- 12
- 13
- 11